Science and Technology. Ping, a pulse of sound in active sonar. Pinging, the noise indicative of improper combustion in internal combustion engines. Ping (Chinese: åª), a Taiwanese measure of area. Ping project, a project of the European Molecular Biology network (EMBnet)
Pre-Market Stock Trading. As its name suggests, pre-market stock trading occurs before the stock market opens up for its regular hours of trading at 9:30 a.m ET. Pre-market stock trading takes place between the hours of 8:00 to 9:30 a.m. ET.
Below is what you want to look for when scanning stocks during the pre-market. 1  Stocks greater than $5 dollars. 2  Volume needs to be somewhat heavy. 3  Once you see a stock that is up on decent volume and above $5 dollars you will want to check the volume average for the last 30 days.